Roof pitch sight gauge



Dec. 26, 1950 F. HANsi-:N

ROOF PITCH SIGHT GAUGE Filed Feb. 27, 194s Patented Dec. 26, Y1950 UNITED, STATES PATENT oFFlcE i i i v` '2,535,411'* Y f .RooF'Pr'roii sIGH'rfGAUGa Y Fred nan'se, white Plains, N.v Y. application February 27, 194s, seriaiNo.f11`,7o2

4 Claims.

This invention relates to measuring` devices. and more particularly to a'roof pitch sight gauge for enabling an accurate estimation of the dimensions of a peaked-roof from a position remote therefrom. 1 j

In calculating the surface areas of a peaked roof it is necessary to ascertain the up and over distance, i. e., the total width of the two sloping sides of the roof, which distance when multiplied'A by the length of the roof will result in the sur-1 face area. While the length of the .roof is a dimension readily ascertainable from the ground, it Abeing normally coextensive with the ground length of the building, the up and over1 distance*` is not coextensive with the ground 'width of the,l

A further object of the invention is to provide. an adjustable roof sight gauge of simple' and inexpensive construction andv of 'small compact shape and size sol as to be easilyhandled andy readily adaptable for use as a.`mailing piece. l

Other objects and features will become -ap-V r parent from the following description when read in conjunction with the drawings wherein:

Fig. 1 is a general fro-nt view of thevgauge 'asv embodiedV in a foldable card or mailing piece.y Fig. 2 is a diagrammatic view illustrating, the manner in which the gaugeis used.V v Fig. 3 isa detail view showingseparat'ely the indicia bearing sector element of the gauge.

Fig. 4 is a view showing the manner in which the structure may be folded for handling or mailing purposes. l

With reference to the drawings and particularly to Fig. 1,'it will be seen that the device, according to the present invention, may be embodied in a card shaped in the form substantially as shown so as to provide a rectangular center section I with flaps 2, 3 disposedl at each side thereof. While card stock is deemed a preferable materia1 for the device, it will be understood any like material having similar qualities of texture, rigidity and opaqueness may be employed. The side flaps 2, 3 are divided from the center section I by vertical fold or bend lines of by a pivot pin IIl is a sector shaped member.

I2 having straight edges I3, i4, as can also be seen in Fig. 3. The pivotal connection between the sector I2 and the tab 5 may be of any suitable construction so as to enable rotatable adjustment of. thesector relative to the tab, whereby varying roof peak' angles may be simulated by the composite silhouette formed between tab edge 6 and the sector edge I4 when the device is used in the manner hereinafter more fully described.

The sector is provided with values in graduated scales l5, I6 arranged arcuately thereon and cir# cumferentially ofthe pivotal axis thereof. Co'- operating with said scales are viewing apertures I 1, I8, vformed in the tab 5 and disposed the same radial distances respectively from said pivotal axis as said scales so as toprovide a xed point i'or locatingthe related value in each scale corresponding to the adjusted position of the sec-- tor I2.

The manner in which the gauge may be used is illustrated in Fig. 2. As can be seen therein, the Auser may be positioned at any convenient point somewhat distant from the gableend of the roof to be measured. The gauge is held in v a manner wherein the tab 5 will provide a silhouette `over which the .roof gable is sighted, the edge 6.ofthe tab .being made to align with theside I9 of the roof., The sector I2 is then rotatably adjusted so that the edge I4 thereof aligns with the side 20 of the roof, whereby the peak angle of the roof will be duplicated in the gauge by the composite angle formed by the tab 5 and sector I2. From the scale I6 the pitch point of the roof will be indicated in the viewing aperture I8, said pitch point being indicated as a fractional value and being that portion of the ywidth of the building by which the up and over dimension of the roof exceeds the width of the building. For example, in the present instance with the Width of the building known to be twenty-four feet, and assuming the pitch point 

